.nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
  padding: 0 20px 0 0;
  .collapse {
    cursor: pointer;
    width: 64px;
    height: 100%;
    text-align: center;
    &:hover {
      background-color: #ccc;
    }
  }
  .left {
    display: flex;
    align-items: center;
  }
}
